Abstract:
The induction of state of the art PATCOMS equipment has revolutionized
the communication scenario of Pakistan Army. In field conditions, the
importance of provision of vital information to commanders at all level can
never be denied. It has often experienced that units/detachments are
deployed in AOR much ahead of the formations/unit headquarters. A normal
analog PATCOMS subscriber number which has a maximum line length of
6 kms can not be extended to such isolated units/detachments deployed
beyond the recommended line distance as no line extender/repeaters are
presently available with PATCOMS equipment.
The functionality of this project is to describe the specifications for a device
which will be used to enhance the existing range of the analog extention of
patcoms. This device will include two separate circuits,one each for exch
side(DMU-220) and the other for the subscriber side. Each device will act as
self-contained independent systems. This configuration will allow the signal
to be enhanced and amplified at both ends.The device is planned to contain
a power amplifier in the voice frequency range, an echo cancellation
device,and an impedance matching unit.
